Clamping device.



PATBN'fF-D MAY 7, 1907.

I No. 853,128.

' c. L. SIMMONS. GLAMPING 115mg. APPLIOA'TIOH FILED JAN. 80, 1907.

Arm/mas Tn: NORRIS rzrsns C21,, WASHINGTON, n. c.

UNITED STATES PATENT orrion.

GLAMPING DEVICE.

Specification of Letters Patent.

Patented May '7, 1907.

Application filed January 30, 1907. Serial No. 354,862.

To all whom it may concern.-

Be it known that I, CALVIN Lv SIMMoNs, a citizen of the United States,and a resident of Davenport, in the county of Lincoln and State ofWashington, have invented a new and Improved Clamping Device, of whichthe following is a full, clear, and exact description.

My invention relates to devices for handling monuments, pillars and likeheavy articles, and its object is to provide a new and improved clampingdevice or cradle, for convenient attachment to the article and forsecurely gripping the same, to permit of hoisting or lowering thearticle in the quarry, shop, cemetery or other place and without dangerof the article toppling over or the clamping device becoming loose ordetached.

The invention consists of novel features and parts and combinations ofthe same, which will be more fully described hereinafter and thenpointed out in the claims.

A practical embodiment of the invention is represented in theaccompanying drawings forming a part of this specification, in Whichsimilar characters of reference indicate corresponding parts in all theviews.

Figure 1 is a side elevation of the improvement as applied; Fig. 2 is aplan view of the same, and Fig. 3 is an enlarged side elevation of partof the improvement.

The frame A of the clamping device consists essentially of the side armsA, A rigidly connected with each other near their ends by cross bars A Acarrying sleeves A A between the side arms, so as to form handles forconveniently lifting the frame A by hand whenever it is desired to doso. The ends of the side arms A, A of the frame are connected withcables, chains, rods or like devices B of a derrick or other hoistingdevice of any approved construction, to permit of raising or loweringthe frame A and an article O held therein, as hereinafter more fullydescribed.

In order to securely engage the article O, eccentric rollers D and D areprovided, arranged for peripheral engagement with opposite faces of thearticle O, the eccentric shafts or trunnions D and D of the saideccentric rollers being adjustably held in sets of notches A A formed inthe side bars A, A and leading to longitudinal channels A, A so as topermit of moving the rollers D and D toward or from each other accordingto the width of the article to be clamped by the device. The notches A Aare slightly inclined toward each other so as to prevent the shafts ortrunnions D or D from accidentally leaving the notches when the deviceis use The rollers D and D are provided at one end with dogs E engagingratchet teeth A, A formed on the upper edges of the side arms. A, so asto hold the clamping rollers D and D against return movement after therollers are in engagement with the opposite sides of the article O, andthe frame A is released from the derrick or other hoisting device.

In order to prevent the polished faces of the article Ofrom being marredby the clamping rollers D and D, the peripheral faces thereof areprovided with suitable soft cushions D D of rubber or other suitablematerial, which cushions have a tendency to firmly grip the faces of thearticle 0 when the frame A is lifted. Now by the arrangement described,the clamping rollers D and D can be readily adjusted toward or from eachother according to the width of the article O to behandled, and bymounting the clamping rollers D and D eccentrically in the frame A andlifting the latter by the derrick or other hoisting device or by hand,it is evident that the clamping rollers D and D firmly engage theopposite faces of the article C, so as to firmly grip the same, therebyholding the article suspended in the frame A when the latter is raisedor lowered.

The clamping device shown and described is very simple and durable inconstruction, composed of few parts, and not liable to easily get out oforder.

Having thus described my invention, I claim as new and desire to secureby Letters Patent:

1. A clamp for monuments, pillars and like articles comprising a frame,a hoisting device connected with the said frame, and clamping rollerseccentrically mounted on the said frame independent of the said hoistingdevice, the rollers being adapted to engage opposite sides of thearticle.

2. A clamp for monuments, pillars and like articles comprising a frame,a hoisting device connected with the said frame, clamping rollerseccentrically mounted on the said frame independent of the said hoistingdevice, the rollers being adapted to engage opposite sides of thearticle, and means for holding the said clamping rollers against returnmovement.

3. A clamp for monuments, pillars and like articles comprising a frame,a hoisting device connected with the said frame, clamping rollerseccentrically mounted on the said frame independent of the said hoistingdevice, the rollers being adapted to engage opposite sides of thearticle, a dog on the end of the clamping roller, and teeth on the saidframe for engagement by the said dog.

4. A clamp for monuments, pillars and like articles comprising a frame,a hoistin device connected with the said frame, an clamping rollerseccentrically mounted on the said frame in dependent of the saidhoisting device, the rollers being provided. with peripheral clampingcushions adapted to engage opposite sides of the article,

A clamp for monuments, pillars and like articles comprising a framehaving side arms, cross bars for connecting the sidearms rigidly witheach other, the cross bars forming handles for lifting the clamp byhand, and clamping rollers eccentrically mounted on the said side arms adistance inward of the said cross bars, the said clamping rollers beingadapted to engage opposite sides of the article when lifting the frameon raising the said cross bars.

6. A clamp for monuments, pillars and like articles, comprising a frameadapted to be lifted and having side arms, each of said side arms beingprovided with a longitudinal slot, and one of the sides of the slotbeing provided with notches, and clamping rollers having eccentricshafts for engagingthe said notches.

7. A clamp for monuments, pillars and like articles comprising a frameadapted to be lifted and having side arms provided with notches andteeth, clamping rollers having eccentric shafts for engaging the saidnotches, and dogs on the ends of the said rollers for engaging the saidteeth.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

CALVIN L. SIMMONS.

Witnesses P. W. DILLON, MARTIN ENGELSON.

